21538104

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128203}}^1$

素因数の和:128219

約数の個数: 32

約数和(自身を含む): 61537920

約数和(自身を除く): 39999816

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128203, 256406, 384609, 512812, 769218, 897421, 1025624, 1538436, 1794842, 2692263, 3076872, 3589684, 5384526, 7179368, 10769052, 21538104]

約数ペア:

[(1, 21538104), (2, 10769052), (3, 7179368), (4, 5384526), (6, 3589684), (7, 3076872), (8, 2692263), (12, 1794842), (14, 1538436), (21, 1025624), (24, 897421), (28, 769218), (42, 512812), (56, 384609), (84, 256406), (168, 128203)]